Abstract
An expansion of the thermodynamic potential in powers of the order parameter of the superfluid phase transition is found for liquid 3He in an aerogel at T=0. The discontinuity in the compressibility (sound velocity), which is the analog of the discontinuity in the specific heat for second-order temperature phase transitions, is calculated. The magnitude of the critical quantum fluctuations (zero-point vibrations) of the order parameter is estimated.
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References
J. V. Porto and J. M. Parpia, Phys. Rev. Lett. 74, 4667 (1995).
D. T. Sprague, T. M. Haard, J. B. Kycia et al., Phys. Rev. Lett. 75, 661 (1995).
D. T. Sprague, T. M. Haard, J. B. Kycia et al., Phys. Rev. Lett. 77, 4568 (1996).
A. I. Larkin, JETP Lett. 2, 130 (1965).
K. Matsumoto, J. V. Porto, L. Pollack et al., Phys. Rev. Lett. 79, 253 (1997).
J. V. Porto, A. Golov, K. Matsumoto et al., preprint, Cornell University, August 27, 1997.
E. V. Thuneberg, S. K. Yip, M. Fogelström, and J. A. Sauls, Preprint http://xxx.lanl.gov/abs/cond-mat/ 9601148.
E. M. Lifshitz and L. P. Pitaevskii, Statistical Physics, Pergamon Press, Oxford, 1950 [Russian original, Nauka, Moscow, 1978, part 2].
M. G. Vavilov and V. P. Mineev, Zh. Éksp. Teor. Fiz. 112, 1873 (1997) [JETP 85 (1997)] (in press).
J. C. Wheatley, Rev. Mod. Phys. 47, 415 (1975).
L. D. Landau and E. M. Lifshitz, 3rd ed. Statistical Physics, Pergamon Press, Oxford, 1980 [Russian original, Nauka, Moscow, 1976, part 1].
K. B. Efetov and M. M. Salomaa, J. Low Temp. Phys. 42, 35 (1981).
I. A. Fomin, Phys. Lett. A 66, 47 (1978).
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Pis’ma Zh. Éksp. Teor. Fiz. 66, No. 10, 655–660 (25 November 1997)